Is there a frequent flyer program?

Yes, Northwest Airlines offers a frequent flyer program called "Northwest WorldPerks." This program allows travelers to earn miles when flying with Northwest Airlines or its partner airlines. Accumulated miles can be redeemed for free flights, upgrades, and other travel-related benefits. WorldPerks members also enjoy priority boarding, access to airport lounges, and exclusive offers from program partners. There are different membership tiers based on the number of miles flown, starting with basic membership and progressing to Silver, Gold, and Platinum levels. The program also offers additional perks such as bonus mile promotions, online account management, and the ability to earn miles with car rental and hotel partners. Overall, Northwest Airlines' WorldPerks program provides a rewarding experience for frequent flyers.